Printing press roller socket



July 10, 1934. s. v. CHANDLER 1,965,734

\ PRINTING PRESS ROLLER SOCKET Filed March 24, 1933 INVENTOR. GeorzyefChandlen ORNEY,

Patented July 10, 1934 UNITED STATES PATENT OFFICE Application March 24,

Claims.

It is well known that rollers of this character are constructed ofcomposition which, after being in use for some time will become soft andif allowed to remain against or in contact with 8 the surface of thecylinder or printing surface,

, when the press is idle, will result in the formation of flat orirregular portions on 'the surface of the roller.

It is one of the objects of the present invention to provide improvedmeans whereby the rollers may be adjustedout of contact with theprinting surface when not in use, without taking the same out of itsbearings, and for maintaining them in such position to permit cooling ofthe rollers as well as maintain the roller in the proper shape.

A further object is to provide improved means whereby the roller may bequickly thrown back and away from the cylinder to permit ready cleaning.

A further object is to provide improved means adapted to be set andlocked so that a proper positioning of the roller may be obtained andassured, rendering the same, so to speak, foolproof and thereby preventinjury to any of the parts of the structure.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty in substantially the construction, combination and arrangementof the several parts hereinafter more fully described and claimed andshown in the accompanying drawing illustrating this invention, and inwhich Figure 1 is a view of a portion of a printing press, having aroller socket attached thereto constructed in accordance with theprinciples or this invention.

Figure 2 is an end elevation of Figure 1.

Figure 3 is a detail sectional view taken on line 3-3, Figure 2.

Figure 4 is a, detail sectional view taken on line 44, Figure 3.

Figure 5 is a detail sectional view, with parts broken away, taken online 5-5, Figure 4.

Referring .more particularly to the drawing, the numeral designatesgenerally the supporting structure of a. printing press, 11 the printingcylinder and 12 one of the operating gears therefor, all of the ordinaryand well known construc- .tion.

'The numeral 13 designates one-member of a supporting bearing or bracketprovided-with a semi-circular bearing or seat 14, and this bracket ormember 13 may be secured in position to a portion of the printing press,for adjustment in 1933, Serial No. 662,436

diflerent planes for positioning an inking roller Journaled therein,toward and away from the periphery of the cylinder, by means of an arm15 in which is provided a slot 16, and through which slot a fasteningbolt 17 passes, a nut 18 being provided on the bolt for securing thebracket in position.

A co-operating member 19 having a semi-circular recess or seat 20therein is pivotally connected as at 21 to the bearing member 13 andisprovided with a bifurcated portion 22 in which a bolt 23 is adapted tobe positioned, and which bolt is pivotally connected as at 24 to themember 13 and is provided on its free end with an adjustable thumb orwing nut 25.

The member 19 is adapted to be moved about its pivot 21 when the bolt 23is disengaged therefrom, which latter may be accomplished by adjustingthe thumb or wing nut 25 on the bolt so as to allow the bolt to swingabout the pivot 24 and out of the bifurcation 22.

Stops 2627 may be provided on the members 13 and 19 so as to limit theopening movement of the member 19 with respect to the member 13.

The numeral 28 designates generally a bearinghaving a reduced eccentricportion 29 shaped to form. spaced shoulders 30-31. The bearing 28 issecured in position by means of the bracket so that the eccentricportion 29 will rest in the recesses 14'20 when the member 19 is closedwith respect to the member 13 and so that the shoulders 30--31 will abutthe lateral faces of the members 13-19 and thereby hold the bearing 28against displacement.

The bearing 28 is provided with a socket 32 opening through one facethereof and within this socket roller or ball bearings 33 are arrangedto encompass a sleeve'portion 34. The roller or ball bearings 33 areheld against displacement with respect to the socket 32 in any suitablemanner such as by means of a split ring 35 seated in the wall of thesocket 32.

The extremity of the axle or shaft 36 of the printing or inking roller37, is inserted into the sleeve 34 and projects through the eccentricpor tion 29 of thebearing member 23, and the axle 36 frictionally fitswithin the sleeve 34, so that upon rotation of the axle the sleeve willalso be rotated. Obviously, one of the bearings and supporting socket isprovided on each end of the inking roller. v

' It will be manifest that with this improved construction there isprovided a 'roller bearing socket in which the ends of the axle of theprinting roller are journaled and by reason of these roller or ballbearings the friction between the printing rollers and the bearings willbe materially reduced, and less power will be required to operate themachine.

It has been found that by reason of the fact that these printingfrollers37 are constructed of a composition, they become very hot when the usethereof has been extended, and they become soft, with .the result thatwhen the press is idle, if the rollers are allowed to remain in contactwith the cylinder or printing surface asv and when they become cooled,flat portions will be formed in the rollers or the surfaces thereof andthey will become distorted. Therefore, in order,

' the necessity of lifting the rollersout of position,

and 46 and in a Y shoulders.

the bearings 28 have been mounted eccentrically. By loosening the thumbnuts 25 and rotating the bearings 28 in the brackets, by grasping theperiphery of the sockets 28, which latter are preferably knurled as at38, it will be manifest that the roller 3'? will be bodily moved awayfrom the cylinder and may be maintained in such position to permit it tocool. When it is desired to again employ the rollers, the bearings orsockets 28 are again rotated inthe brackets to properly position theinking roller with respect to the cylinder. Obviously, this means may beutilized in order to obtain the desired pressure of the inking rollerupon the cylinders. When the roller is adjusted into a printing positionit may be secured in such position by tightening the wing or thumb nut25.

It has been found; however, in structures of this character, that whenthe inking roller is.

thrust backwardly away from the cylinder after the thumb or wing nuts 25have been loosened, the roller when it is thrown back into position isnot always accurately positioned. In some instances the roller may bethrown against the cylinder to exert too much pressure thereupon, and inother instances perhaps may not be thrown back far enough into operativeposition. Therefore, in order to provide a means which will insure theaccurate positioning of the roller with respect to the cylinder and tolimit the extent of its movement backwardly and away from the roller,means are provided so as to render the device to be what might be termedfool-proof,

and at the same time insure a proper positioning of the roller.

To that end there may be provided an annular member 39 preferably in theform of a of a supporting bracket. The reduced portion of the. socket orhearing 28 may be provided with "a circumferential groove 41 openingthrough the periphery thereof, and extending through the collar ormember 39 transverse to the axis thereof, is a fastening screw 42, theend 43 of which is shaped toenter the groove 41; A portion of theperiphery of the collar or member 39 is reduced as at 44 to form spacedshoulders 45-46. Projecting laterally from the bracket is a pin orextension 47 disposed between the shoulders 45 position to be engaged bysuch when the collar-'39 is secured to the socket or bearing 28 forrotation therewith by adjusting the screw 42 so that the extremity 43thereof will project into the groove 41 and bind against the bottom ofthe groove, it will be manifest that when the thumb or nut 25 isloosened, the operator by grasping the periphery 38 of the bearing orsocket 28 may rotatethe bearing within the bracket and the eccentricportion of the bearing will cause the roller 37 to be moved toward oraway from the periphery of the cylinder or printing surface 11,according to the direction of rotation of the bearing or socket 28. Thisrotary movement of the bearing or socket 28 with respect to thesupporting bracket in one direction will be limited by means of one ofthe shoulders 45-46, engaging the pin or projection 47 and will likewisebe limited in its rotation in the opposite direction by reason of theother of the shoulders 45-46 contacting with the pin or projection 47.

It will therefore be manifest that after the collar or member 39 isadiusted and secured in a set position with respect to the socket orbearing 28, the extent of movement of the printing roller toward andaway from the printing surface or cylinder, will be controlled and itwill not be necessary to adjust the bearing or any part thereof afterthe roller has been moved away from the cylinder or printing surface andback again into printing position, to insure a proper positioning of theinking roller.

By loosening the screw 42 a relative adjustment of the collar 39 withrespect to the bearing or socket 28 may be obtained and the shoulders45-46 may be positioned with respect to the axis of the eccentricportion 29 and the shaft 36, as may be desired.

It will also be manifest that by reason of the slot and bolt connection16-17 between the bracket and the frame of the press, the position ofthe inking roller 37 with respect to the cylinder may also bev varied,that is the bracket may be adjusted to cause the roller to move towardsand away from the cylinder, or the bracket may be adjusted about thebolt 17 as a pivot.

While the preferred form of the'invention has been herein shown anddescribed, it is to be understood that various changes may be made inthe details of construction and in the combination and arrangement ofthe several parts, within the scope of the claims, without departingfrom the spirit of this invention.

What is claimed as new is:-

1. In combination, in a printing press, a printing cylinder, an inkingroller, a supporting bracket for the roller, said bracket embodying twomembers hinged together to form a bearing seat, a bearing in the seatfor the roller, a portion of the bearing being eccentrically mountedbetween the said members of the bracket, means for clamping the bracketmembers together to frictionally bind said eccentric portion .of thebearing against rotation in said bracket, said eccentric portion beingfreely rotatable in said bracket when the clamping effect of the bracketmembers is released, to permit the roller to be moved laterally awayfrom said cylinder, a collar carried with the said eccentric portion,and co-operating means on the collar and said bracket for limiting theextent. of rotation of the eccentric in said bearing, the last saidmeans embodying a flxed stop on one of the parts and spaced shoulders onthe other of the parts and between which shoulders the said stopoperates.

2. In combination, in a printing press, aprinting cylinder, an inkingroller, a supporting bracket for the roller, said bracket embodying twomemtive adjustment with respect thereto and with re-.

spect to the supporting bracket, means for locking the collar in itsadjusted position with respect to the eccentric, and co-operating meanson the collar and said bracket for limiting the extent of rotation ofthe eccentric in said bearing, the last said means embodying a fixedstop on one of the parts and spaced shoulders on the other 0! the partsand between which shoulders the said stop operates.

3. In a printing press, an inking roller, sockets in which the ends oithe inking roller are jour-. naled, brackets in which the sockets arerotatably and eccentrically mounted whereby said roller may be movedtowards and away from the printing surface by rotating the sockets inthe brackets, means for limiting the extent of such rotation of thesockets in the brackets, said means embodying a collar carried with saideccentric portion and co-operating means on the collar and said bracketfor limiting the extent of rotation of the eccentric in said bearing,the last said means embodying a fixed stop on one of the parts andspaced shoulders on the other 0! the parts and brackets, means betweenwhich shoulders said stop operates, and means mounting the brackets foradjustment in planes intersecting each other.

4. In a printing press, an in which the ends of the inking roller arejournaled, brackets in which the sockets are rotatably and eccentricallymounted whereby said roller may be moved towards and away from theprinting surface by rotating the sockets in the brackets, means forlimiting the extent of such rotation of the sockets in the brackets,said means embodying a collar carried with said eccentric portion andco-operating means on the collar and said bracket for limiting theextent of rotation of the eccentric in said bearing, the last said meansembodying a fixed stop on one of the parts and spaced shoulders on theother of the parts and between which shoulders said stop operates.

inking roller, sockets 5. In a printing press, an inking roller, socketsin which the ends of the inking roller are journaled, brackets in whichthe sockets are rotatably and eccentrically mounted whereby said rollermay be moved towards and away from the by rotating the sockets in thefor limiting the extent of such rotation of the sockets in the brackets.said means embodying a collar carried with said eccentric portion andco-operating means on the collar and said bracket for of the eccentricin said bearing, the last said means embodying a fixed stop on one ofthe parts and spaced shoulders on the other of the parts and betweenwhich shoulders said stop operates, and means for securing the collar tosaid eccentric portion for, relative rotative adjustment with respectthereto.

' GEORGE VENTRESS CHANDLER.

printing surface limiting the extent of rotation

